Roller-skate



(No`Model.)

W.' v. YosT.

ROLLER SKATE.

No. 363,716.` Patented May 24, 1887.

WTNESSES N4 PETERS. Phom-lithugmpher. washingmn. D. c.

UNITED STATES PATENT OFFICE.

VILLIAM V. YOST, OF VEST DEGA'IUR, PENNSYLVANIA.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 363.716, dated May 24, 1887.

Serial No. 233.198. (No model.)

To @ZZ whom it may concern:

Be it known that I, WILLIAM V. YosT, a citizen of the United States of America, residing at Vest Decatur, in the county of Clearlield and State of Pennsylvania, have invented certain new and useful Improvements in Rollei'- Skates; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying.drawings, and to letters or iigures of reference marked thereon,\vhich form a part of this specication.

This invention relates to that class of devices known as "pedicycles or pedomotors.77

The objectof the invention is to so construct a sin gie-wheel pedicycle as to prevent the rearward movement of the wheel during the forward thrust or stroke of the foot, and also to so support the rim of the wheel when a weight is borne by the foot-plate as to relieve the spokes of strain. These and minor objects are attained by the construction illustratedin the accompanying drawings, wherein- Figure l is a side elevation of a pedicycle embodying my improvements. Fig. 2 is a similar view, looking from the other side. Fig. 3 is a vertical section.

The wheel consists of a hub, A, from which extend curved radial spokes B,united at their outer ends to the outer sides of .the rim or felly C. The hub is at its outer end preferably in line with the outer curve of the spokes B and extends inward to about the inner edge of the felly, the inner end being coneshaped to it a cone-socket, d, formed about midway 'of the length of the leg-piece D. This leg-piece D is curved outwardly from its center to lie within the curve of the spokes B,and is fitted at the lower end with a foot-plate, E, designed to project on either side ot' the felly, and pro- -edge of the felly, the purpose of this arrangement being to prevent the wheel from making a retrograde movement. The heel of the footplate is provided with a downwardly and rearwardly extending spur, e", forming a drag-l brake to Aarrest the forward movement of the wheel when occasion may require.

The upper end of the leg-piece B is itted with a strap,by means of which said legpiece may be secured to thelcg of the wearer below the knee, and the foot-plate is also provided with straps or other devices, by means of which said plate may be secured to the foot of the wearer.

The wheel, hub, and legfpiece are connected by a bolt, d@ which serves as the journal on which the wheel revolves, and I prefer that said bolt be provided with aconed head, forming, in connection with the coned socket of the leg-piece, two coned surfaces upon which the wheel revolves, the bolt being capable of longitudinal adjustment to take up wear, and to this end Iitted with a jam-nut, d.

The spokes, or .both the spokes and felly, may be made of spring metal to take up vibrations and jar caused by traveling over uI1- even surfaces, and the felly may be provided with a rubber tire to further cushion shocks and jars. In constructing the spokes, or spokes and felly, of spring metal I prefer that the friction-roll carried beneath the footplate be not in constant contact with the inner surface of the felly, but be brought in contact therewith to take strain from the spokes and felly upon encountering an obstruction in the surface traversed.

I claiml. The combination, substantially as described, of the wheel having curved spokes, the lcglpiece provided at its lower end with a foot-plate overhanging the felly, and thejournal-bolt connecting the wheel with the legpiece.

2. The combination, substantially as described, of the wheel consisting of at'elly provided with inwardly-facing ratchet-teeth, and a hub provided with curved spokes united to the felly at one side, and theleg-piece connected to the hub by a journal-bolt and provided at its lower end with a foot-plateitted with a pawl to automatically engage the ratchet-teeth of the felly.

3. The combination of the wheel constructed substantially as described, the leg-piece connected with the wheel by ajournal-bolt, and

IOO

scribed, of theleg-piece provided with aconed socket, the wheel, and the journal-stud pro'- vided with a coned head.

In testimony whereof I affix my signature in presence of two Witnesses.

VILLIAM V. YOST.

Vituesses:

MILES S. SPENCER, VITMER BROWNE. 

